PTCEL13R121MBE

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Inrush current is a phenomenon that occurs when a power supply is turned on. It is a momentary surge of current that can cause a lot of damage to electronic components if it is not limited. Inrush current limiters (ICLs) are components designed to limit the amount of inrush current that flows through the power supply, ensuring that only the necessary amount of current passes through the system. The PTCEL13R121MBE is a type of ICL, and it is used in a wide variety of applications.

The PTCEL13R121MBE is a special type of ICL because it utilizes two different components to limit the inrush current. The first component is a thermistor, which is a type of resistor that has a low resistance when cold and a high resistance when hot. The thermistor is connected to the power supply in series, such that when the power supply is turned on, the thermistor will absorb most of the inrush current until it heats up. The second component is a bypass capacitor, which is connected in parallel to the thermistor. When the thermistor has heated up to the predetermined temperature, the bypass capacitor will begin to conduct current, limiting the amount of inrush current that passes through the power supply.

The PTCEL13R121MBE can be used in a variety of applications, including power supplies, motor starters, drives, and lighting systems. In order to ensure consistent performance, the bypass capacitor should be chosen to accommodate the highest amount of inrush current that the application will see, while the thermistor should be chosen to ensure that the thermal time constant of the system is appropriate. Additionally, the PTCEL13R121MBE can be used with a wide variety of power sources, from AC or DC mains power to low-voltage supplies.

The PTCEL13R121MBE is a widely-used type of inrush current limiter, and it is an effective tool for limiting the amount of inrush current that passes through a power supply. Its two components – a thermistor and a bypass capacitor – work together to ensure that the inrush current is limited while still enabling the power supply to provide the necessary electrical power. The PTCEL13R121MBE has a wide variety of applications, ranging from power supplies to motor starters and lighting systems, and it can be used with a wide variety of different power sources.

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